Prep Time 20 minutes mins
Cook Time 1 hour hr 5 minutes mins
Total Time 4 hours hrs 45 minutes mins
For variations, swap graham cracker crumbs with digestive biscuits or gingersnaps. Add almond extract or bourbon to the filling, or top with fresh berries or chocolate drizzle. Store leftovers covered in the fridge for up to 5 days; caramelize sugar topping fresh before serving.